화학공학소재연구정보센터
International Journal of Control, Vol.85, No.10, 1532-1545, 2012
Output-feedback control for switched linear systems subject to actuator saturation
This article is devoted to the output-feedback H-infinity control problem for switched linear systems subject to actuator saturation. We consider both continuous-and discrete-time switched systems. Using the minimal switching rule, nonlinear output feedbacks expressed in the form of quasi-linear parameter varying system are designed to satisfy a pre-specified disturbance attenuation level defined by the regional L-2 (l(2))-gains over a class of energy-bounded disturbances. The conditions are expressed in bilinear matrix inequalities and can be solved by line search coupled with linear matrix inequalities optimisation. A spherical inverted pendulum example is used to illustrate the effectiveness of the proposed approach.